import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'

// create an axios instance
const service = axios.create({
	baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
	// withCredentials: true, // send cookies when cross-domain requests
	// timeout: 5000 // request timeout
})

// request interceptor
service.interceptors.request.use(
	config => {
		// do something before request is sent

		if (store.getters.token) {
			// let each request carry token
			// ['X-Token'] is a custom headers key
			// please modify it according to the actual situation
			config.headers['Token'] = getToken()
		}
		return config
	},
	error => {
		// do something with request error
		console.log(error) // for debug
		return Promise.reject(error)
	}
)

// response interceptor
service.interceptors.response.use(
	/**
	 * If you want to get http information such as headers or status
	 * Please return  response => response
	 */

	/**
	 * Determine the request status by custom code
	 * Here is just an example
	 * You can also judge the status by HTTP Status Code
	 */
	response => {
		// console.log(response)
		const res = response.data

		// if the custom code is not 200, it is judged as an error.
		if (response.status !== 200) {
			Message({
				message: res.message || 'Error',
				type: 'error',
				duration: 5 * 1000
			})

			// 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
			return Promise.reject(new Error(res.message || 'Error'))
		} else {
			return res
		}
	},
	error => {
		console.log('err' + error) // for debug
		Message({
			message: error.message,
			type: 'error',
			duration: 5 * 1000
		})
		return Promise.reject(error)
	}
)

export default service

export function save(file_name, response){
	var fileURL = window.URL.createObjectURL(new Blob([response], {type: "application/octet-stream"}));
	var fileLink = document.createElement("a");

	fileLink.href = fileURL;
	fileLink.setAttribute('download', file_name);
	document.body.appendChild(fileLink);

	fileLink.click();

	URL.revokeObjectURL(fileLink.href);
	document.body.removeChild(fileLink);
}
